In line with the present data, amplification of the StAR gene, but neither aromatase nor other steroidogenic enzyme genes, as analyzed by TCGA (The Cancer Genomic Atlas) and METABRIC (Molecular Taxonomy of Breast Cancer International Consortium) BC datasets, correlates with poor survival of patients afflicted with luminal subtype BCs [7,9]. This evidence concerns the gene CYP19A1 and cancer.